MCZ34652EFR2【PDF 3/26 页】IC HOTSWAP CTRLR 2A NEG 16SOIC

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Analog Integrated Circuit Device Data

Freescale Semiconductor

34652

PIN CONNECTIONS

rchived by Freescale Semiconductor, Inc., 2008

PIN CONNECTIONS

Figure 3. 16-SOICN Pin Connections

Table 1. 16-SOICN Pin Definitions

A functional description of each pin can be found in the FUNCTIONAL PIN DESCRIPTION section beginning on page

Pin Name

Formal Name

Definition

1, 8, 9, 16

VIN

Negative Supply

Input Voltage

This is the most negative power supply input. All pins except DISABLE are referenced

to this input.

Power Good Output

(Active High)

This is an active high power good output signal. This pin is referenced to VIN.

Power Good Output

(Active Low)

This is an active low power good output signal. This pin is referenced to VIN.

4, 5

VOUT

Output Voltage

This pin is the drain of the internal Power MOSFET and supplies a current limited voltage

to the load.

TIMER

Start-Up and Retry

Delay Timer

This input is used to control the time base used to generate the timing sequences at

start-up and the retry delay when the device experiences any fault.

No Connect

Not connected.

Overvoltage Control

This pin is used to set the upper limit of the input voltage operation range.

Undervoltage Control

This pin is used to set the lower limit of the input voltage operation range.

VPWR

Positive Supply

Input Voltage

This is the most-positive power supply input. The load connects between this pin and the

VOUT pin.

DISABLE

Disable Input Control

This pin is used to easily disconnect or connect the load from the main power line by

disabling or enabling the 34652. It can also be used to reset the fault conditions that

cause a Power No Good signal. This pin is referenced to VPWR.

ILIM

Current Limit Control

This pin is used to set the overcurrent limit during normal operation.

ICHG

Charging Current

Limit Control

This pin is used to set the loads input capacitor charging current limit, hence limiting the

inrush current to a known constant value.

VIN

ICHG

ILIM

DISABLE

VPWR

VIN

VOUT

TIMER

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